Development of a Low-Cost Material Polishing Setup with Integrated Speed Control and Water Circulation System

This project presents the design and development of a cost-effective metal polishing setup built specifically for research applications and lab testing. The goal was to create a compact, user-friendly system that offers controlled polishing with added features like speed regulation and water-based cooling, both of which are often missing in traditional polishing machines. The setup uses a 350-watt, low-RPM motor capable of running up to 300 RPM, which drives a stainless-steel bevel gear pair with a 1:1 gear ratio. Power is transmitted through a 15 mm diameter, 1.25-foot-long mild steel shaft, which connects to a polishing wheel. To keep the system cool and prevent heat-related damage or discomfort during prolonged operation, a simple water circulation system has been integrated using a small submersible pump. This continuously delivers water to the polishing area and recycles it through a filtration unit. A speed controller is also incorporated, allowing users to adjust the motor RPM based on material type or finishing needs. The setup is mounted on a rigid mild steel frame, designed with vibration control in mind to ensure smooth operation.